Oak Angel Builders
Mother in Law Suites

Top-Rated Contractor for Mother in Law Suites Construction in Charleston

One of our most requested projects at Oak Angel Builders is building custom mother-in-law suites. These independent living spaces have grown in popularity as sound investments to the residents of Daniel Island, West Ashley, and Kiawah Island. They are a great way to maximize the livable square footage of your property and prove to be prudent investments for families who want family members close by but in their own independent space. We take pride in building high-quality mother-in-law suites of all variations whether you want granny suites, a simple room addition, or ADU. 

Each property we work on is designed to match each client’s property, taste, and requirements. Oak Angel Builders became popular because of the design flexibility and uncompromising craftsmanship we bring to every job; whether you need wheel-chair accessibility, clever storage solutions, mechanical redesign, or have an emphasis on sustainable construction. 

Our passion is delivering beautiful homes that our customers love. With our network of architects, engineers, and landscape designers, your new mother-in-law suite will be the perfect combination of beauty and functionality you imagined for your loved ones.

At Oak Angel Builders customer satisfaction is very important to us. That is why we offer a 5-year workmanship warranty on most projects. We make sure everything is done the right way and we put our money where our mouth is – the way it should be when you hire a mother-in-law suite builder. 

We reliably answer the phone, are accurate with our estimates, transparent in our communication, show up on time, and never sacrifice the quality of our builds. Our team of homebuilders is licensed and insured and we do everything by the book. This means the project you always wanted will go off without any unpredictable obstacles.

Contact us today to get started on your mother-in-law suite!

What to Expect


Design Consultation

Our first interaction will be a discussion of your project, what you want to have done, and the budget you have set…
aside for that project. Since a formal estimate can often take over a week to provide, we try to give our customers a ballpark quote during the first meeting. This allows you to begin to marry your dream with your budget and start talking about the practicalities of the project from Day 1.

Design Delivery

After our initial meeting, we complete the design and estimating process, and deliver our written estimate and floor plan design based…
on your feedback. This includes individual counts of all materials and labor for price transparency. Our goal is to help you look at everything every step of the way until the plans for your new home are complete. And now the exciting part, the work can begin!

Home Construction

The home plans are carried out by our team of professionals with each detail of the floor plan and design…
delivered, ensuring the highest quality product is delivered to you. We stay in communication throughout the build process: so you always know how the job is progressing, if something unexpected comes up, or to answer your questions as the job progresses. Building a house is a dynamic process with many big and small decisions along the way impacting the quality of your build. Our customers enjoy being able to reach their contractor throughout the home building process, to discuss the merits of the different options, and be close to the project manager they have onsite. By the end of the construction process, we have delivered a home that fits you and your specific style and have built a strong relationship that will continue to be there for any more home dreams you come up with!

Post Construction

Once the construction process is finished, we do a final walkthrough of the home to ensure customer..
satisfaction is high. Even after our final walkthrough many customers stay in contact with us. We are proud of our many relationships across Charleston and the surrounding areas. Unlike many builders in the area, we stand firmly by the quality of our build. We offer not just a 1-year workmanship warranty but a 5-year warranty – Charleston’s strongest guarantee. We believe in never skimping on quality which is why we have no issue offering the longest guarantee in the county.

Services We Provide

Oak Angel Builders provides many services, each with  mother-in-law suite and high-quality collaboration workmanship that you can count on.

Our team is often only limited by the imagination of our clients. Need something not listed? Give us a call for a quick consultation on your upcoming project!

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What Makes Oak Angel Builders Different From other Builders of house with mother in law suite?


Transparent and honest communication is incredibly important to us. We believe that the design and build process should feel rewarding for both the client and the homebuilder. That is why we frontload honesty and say things how they are.

Our integrity and quality of work come before anything else on our jobs. Many of our clients who have worked with other builders in the past let us know how much they appreciate our transparency and candor. 90% of our clients say they choose us for that reason.

What does transparency look like? Our estimates are accurate and include the cost of materials and labor, so that you know what you are paying for and why. We do not price high or lowball the price and we are not “yes men”. We make sure we are upfront about the realities of the project and if there is any part of it we question, we will let you know. This helps our team and our clients stay on the same page and have a good experience on every build.


Sustainability is important to us on all of our home projects and we strive to implement it in all ways we can. One unique way we do this is by offering our clients the opportunity to use trees cleared from their own property to be remade…
into custom wood features for their home. Your home can have a part of its local history in it; whether that be through custom shelves, tables, countertops, beams, window trim, or more!

We show up

We show up in more ways than one. The professional quality of our work does not just apply to the design and building. Our clients deserve to be treated with basic good manners to say the very least. That’s why we answer the phone…
show up on time for our appointments, and do good and fair work. We would want the highest quality home created for us; so we do not skimp on quality with our clients. We want to feel comfortable, rewarded, and happy throughout the process; and so create relationships to reflect that. Creating a new home is a partnership between us and our clients, so we strive to make that partnership the very best it can be through quality of work and customer service.


Oak Angel Builders is passionate about providing great results with fantastic customer service along the way. As proof of that, we have a 5-star rating on Google and are a BBB-accredited business. We care about creating relationships that have long-term value and strive to continue that practice on every project we do.

5-year Workmanship Warranty

A 1 year workmanship warranty is standard in the industry, but we strive to go above and beyond and have high confidence in our quality of work. That is why we happily offer the longest guarantee in Charleston county with our 5 year workmanship warranty!
beautiful white bathroom mother in law

Let Oak Angel Builders help you make the mothe-in-law suite of your dreams!

Whether you need the mother-in-law suite for a grandparent, loved one, or would just like a guest suite, or guest room; Oak Angel Builders delivers the high-quality and fair work that clients deserve. Contact us today to start turning that dream home project into a reality!

Areas We Serve

Oak Angel Builders in South Carolina is on John’s Island but also serves the greater Charleston area.

Neighborhoods we serve include: Wraggborough, Ashleyville, West Ashley, James Island, Harbor View, Woodhaven, Folly Beach, Whitehouse Plantation, Stiles Point, Riverland Terrace, Brownswood Village, Kiawah Island, Ocean Park, Indigo Park, East Beach Village, West Beach Village, Cassique, and Seabrook Island.

​Zip codes we serve are: 29455, 29412, 29407, 29401

Frequently Asked Questions

Oak Angel Builders is located on John’s Island, South Carolina but also serves the greater Charleston area. Neighborhoods we serve: Wraggborough, Ashleyville, West Ashley, James Island, Harbor View, Woodhaven, Folly Island, Whitehouse Plantation, Stiles Point, Riverland Terrace, Brownswood Village, Kiawah Island, Ocean Park, Indigo Park, East Beach Village, West Beach Village, Cassique, and Seabrook Island. Zip codes we serve: 29455, 29412, 29407, 29401.
There can be great benefits and use from having an additional dwelling unit, or ADU, on the property. Many families do not want to have their older family members or loved ones living in a nursing home, but they can no longer live on their own. That is where a mother in law suite comes in. It allows for a person to stay on the property with the family, so that extra care can be provided. At Oak Angel Builders we can customize the home design according to what is needed by our clients. Some opt for a home addition, such as an extra room or remodeling an existing room for this purpose, such as a garage conversion or basement remodel. This can also double as a guest room when not being used and, when done well, adds square footage and value to the home in the housing market. Some opt for a guest suite, which is a serperate building from the existing home but on the same property. Depending on the property lot sizes, these home plans can include a kitchenette, master suite, living room, dining room, home office, etc. This can not only provide your family member with the care and space they need, but it can double as a guest house and add value to property.

No, a mother in law suite does not have to be attached to your existing home. You can choose to have it attached to your existing home or be a separate build but on the same property – all according to you and your family’s preferences. We have helped customers build in their backyard or work with a concrete driveway contractor to facilitate building the property off the existing driveway. At Oak Angel Builders we can accommodate all types of designs – attached or separate. Contact us today to get started on your new home plans!

A mother in law suite’s price will vary depending on what is wanted. We design every project specifically for the client based on their style and budget; including floorplan, materials, etc. and we make sure you are provided with accurate estimates through our thorough design process and transparent communication. Contact Oak Angel Builders today to go over your plans and get an initial, ballpark estimate!
The time it takes to build a mother in law suite varies based on floorplan, size, design, and many other details. We usually take about a week to put together the full estimate for a project, so contact Oak Angel Builders today to start that process and we can give you a rough estimate of the time your project will take!
No, Oak Angel Builders does mother in law suites and much, much more! We can also help you with any home project in the following categories: custom home builds, remodels, granny flat, home renovation and restoration, multifamily: 3-plexes, kitchens, bathrooms, additions, model homes, guest homes, siding, roofing, custom shelving and wood features, etc. If you have any questions about our services, or are wondering if we could do a project you have in mind; just reach out and we will let you know!
Why choose Oak Angel Builders to build your new home? Good question. We are a licensed, insured, and experienced team of professional home builders who are passionate about delivering high-quality homes to our clients. We have years of experience in custom builds and home remodeling projects that are tailored for our clients style and taste. We are transparent in our communication, answer the phone, show up on time, have high ratings, and have a 5 year workmanship warranty available to prove our dedication to the quality of our projects. We also offer the unique and sustainable option of using lumber cleared from your own property to make custom pieces like tables, countertops, window trim, etc. for your home.

You can contact us through our phone number: 843-790-0855 or our email address: contact@oakangel.com. We look forward to hearing from you!